FIELD: tyre industry. SUBSTANCE: grooves separating middle rows from side rows and central rib are stepped, with step pitch not less than 2 mm and not greater than half the width of stepped groove. Middle rows of tread blocks are separated by straight-line groove of width not less than 2 mm and not greater than half of step width. EFFECT: enhanced quality of tyre. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PROTECTOR FOR ALL-SEASONAL PNEUMATIC TYRES | 1992 |
|
RU2032549C1 |
| PNEUMATIC TIRE | 2009 |
|
RU2507083C2 |
| PNEUMATIC TIRE | 2010 |
|
RU2424911C1 |
| PNEUMATIC TIRE | 2011 |
|
RU2573124C2 |
| PNEUMATIC TIRE TREAD | 2005 |
|
RU2283241C1 |
| PNEUMATIC TIRE | 2010 |
|
RU2525187C2 |
| PNEUMATIC TIRE WITH SLITTED DRAIN GROOVES | 2009 |
|
RU2508204C2 |
| PNEUMATIC TIRE | 2011 |
|
RU2469872C1 |
| PNEUMATIC TIRE | 2008 |
|
RU2471640C2 |
| PNEUMATIC TIRE | 2010 |
|
RU2424912C1 |
